跳舞吧，像没有人观看一样；去爱吧，像从未受过伤害一样。

Legal rules are not merely commands backed by threats.

The greatest patriotism is to tell your country when it is behaving dishonorably, foolishly, viciously.

The only way to deal with an unfree world is to become so absolutely free that your very existence is an act of rebellion.

数学是理性的音乐。

世界不会记住你说的话，但它永远不会忘记你做的事。